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Probably not readable in direct sunlight, that's the one nice thing about the FSTN LCD I'm using, just as readable in direct sunlight as it is with low ambient light. That's a consideration for an e-cig since it's something you commonly use outdoors.
Yeah that Display on your PowerBlock is the best I've seen.
I still have to mount the FIRE button and shorten the wiring before it is totally complete.The USB charging jack is under the Up/Down buttons and it uses a 15C Li-Po battery.
Nice one good work as usual, just out of curiosity what is battery run time?
Wow I am impressed! Well done on this one Dave. I can't wait to get my hands on a DNA20. I'm getting antsy waiting for them to be released. I've already designed a casing for mine but I am still waiting on my cells from hobby king to show up before I can start building. Also I need to talk to a local friend so he can CNC machine a prototype case for me.
this would be my ultimate mod
Thanks redwolfe.Can't wait to see your mod when your done. Don't forget to come back and post it on this forum.
I got mine ordered and on the way! Cant wait!
BTW, there's a much better mini USB charger to be had here:
A 7amp battery is rated 14C
That's a linear charger so it's for sure going to need heat sinking to run at a rate much above 500mA. I don't see any on that board. The chip may hit thermal limiting and charge at a lower rate even if set for 1A. I don't know if it can actually put out a 1A rate or not, but you pay your nickel and take you chances with electronics purchased from China via eBay.Not sure what you mean by that. To calculate battery drain requirements, you look at maximum output plus losses than divide out worst case battery voltage.For example, if maximum output is 20W and assuming 80% efficiency, that would be maximum input power of 25W. Using a worst case battery voltage of 3V yields 25W/3V or a little over 8 Amps. Therefore, you would want a battery capable of at least 8 Amps drain. In electronics you always allow margins for tolerance so if it were me, I would use a battery with at least a 10 Amp drain limit.
...but you pay your nickel and take you chances with electronics purchased from China via eBay.
My DNA20 showed up today! I'm amazed how TINY it is. Now to get it into something so I can use it.
The display broken a little in my dna20.Its extremely fragile.Where can i buy a new one the same as original to replace ?
This is a bit of an old thread zeus, i don't know how much more it'll get updated!